Restoration of forearm supination by combining pronator teres with allogeneic tendon

Background Many solutions have been proposed in treating of forearm supination. Comparing with other supination function reconstructions, pronator teres rerouting is believed to be less effective due to its insufficient supination strength. The aim of this study is to introduce a modified procedure, and compare its result with two previous approaches. Patients and methods From 2015 to 2020, 11 patients have restored forearm supination by rerouting of the pronator teres weave sutured with allogeneic tendons. The average follow-up period was 17.5 months (12 to 24). The range of active supination at the final follow-up was recorded. Results Almost all patients acquired good supination range. The average active post-operative supination was 72.7 degrees (60 degrees to 80 degrees) at the final follow-up. No complication was observed. All patients retained full range of pronation. Conclusions This study provides a modified supination function reconstruction with simple operating, fine results, low risks, and no affecting of pronation function. The use of allogeneic tendon makes up for the muscles with insufficient length, making it valuable to reconsider those rebuilding operations that were once considered unpromising by many.

Automated summary

This study introduces a modified method for treating forearm supination by rerouting the pronator teres with allogeneic tendons. The results show that almost all patients achieved a good supination range, with no complications observed. The use of allogeneic tendons proved to be valuable in overcoming muscle length insufficiencies and may prompt a reconsideration of previously deemed unpromising reconstruction surgeries.